so, a year ago I bought xperia z3 on ebay as refurbished, but now I noticed a very strange thing. 2G and 4G / LTE signal is not reachable, GPS does not work, drm keys are erased, several bands are missing, there are pictures of colored grain and many more. After hours of searching the phone with the ES root explorer and changing the line in build.prop user on userdebug I found the system partition files and the Trim Area file, this file can be open but there are only some phone information like imei serial no. Etc, I want to find the code to unlock the bootloader(i want to install custom rom) because of course the IMEI number is also not correct and comes from xperia Z1. I apologize for the chaos in the post but I do not know how else to recognize it, I just want to fix it all, but changing the motherboard for a new one does not go into the game. sorry for my English
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Sent from my D6603 using Tapatalk
